通用权限案例平台--登录认证

通用权限管理系统平台采用Froms认证方式实现对用户登录，为解决session超时问题，导致用户重复登录的问题，系统采用cookies保存，并实现灵活保存登录信息。

实现Forms认证，需要在web.config增加配置项

 <authentication mode="Forms">
        <forms loginUrl="~/Home/LogOn" timeout="2880" slidingExpiration="true" cookieless="UseCookies"/>
        <!--采用滑动时间-->
    </authentication>   

自定义实现Authentication类，并实现创建登录用户的票据信息方法

/// <summary>
        /// 创建登录用户的票据信息  
        /// </summary>
        /// <param name="strUserName"></param>
        /// <param name="strPassword"></param>
        /// <param name="strIP"></param>
   
        public static void CreateLoginUserTicket(string strUserName, string strPassword,string strIP)  
        {  
            //构造Form验证的票据信息   
            TUserDo mUserEntity=new TUserDo();
            Filter filter = Filter.Null;
            filter.And(Filter.Eq("LoginId", strUserName.Trim()));
            filter.And(Filter.Eq("Password", Common.Md5Encrypt(strPassword.Trim())));
            filter.And(Filter.Eq("IsDelete", "0"));
            filter.And(Filter.Eq("IsUser", "0"));
            List<TUserDo> list = DataAccess.FindByFilter<TUserDo>(filter);
            if(list.Count>0)
            {
                mUserEntity=list[0];
            }

            int expires = ConvertData.ToInt(System.Configuration.ConfigurationManager.AppSettings["CookiesExpires"].ToString().Trim(), 1);
            FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(1, mUserEntity.UserGuid, DateTime.Now, DateTime.Now.AddHours(expires),
                true, string.Format("{0}",strIP), FormsAuthentication.FormsCookiePath);           
 
            string ticString = FormsAuthentication.Encrypt(ticket);
 
            //把票据信息写入Cookie和Session   
            //SetAuthCookie方法用于标识用户的Identity状态为true   

            #region Cookies            

            HttpContext.Current.Response.Cookies.Add(new HttpCookie(FormsAuthentication.FormsCookieName, ticString));
            HttpContext.Current.Response.Cookies[FormsAuthentication.FormsCookieName].Expires = System.DateTime.Now.AddHours(expires);
            FormsAuthentication.SetAuthCookie(mUserEntity.UserGuid, true);
            #endregion Cookies
            //HttpContext.Current.Session[EAPConst.eap_ipAdress] = strIP;
            //HttpContext.Current.Items[EAPConst.eap_ipAdress] = strIP;
            
            //重写HttpContext中的用户身份，可以封装自定义角色数据；
            HttpContext.Current.Response.Cookies.Add(new HttpCookie(EAPConst.eap_Adress, ticket.UserData));
            HttpContext.Current.Response.Cookies[EAPConst.eap_Adress].Expires = System.DateTime.Now.AddHours(expires);

            string[] info = ticket.UserData.Split(',');  
            IIdentity identity = new FormsIdentity(ticket);
            IPrincipal principal = new GenericPrincipal(identity, info);  
            HttpContext.Current.User = principal;  
        }

/// <summary>   
        /// 用户注销执行的操作   
        /// </summary>   
        public static void Logout()  
        {
            System.Web.HttpContext.Current.Request.Cookies[FormsAuthentication.FormsCookieName].Values.Clear();
            FormsAuthentication.SignOut();  
        }   

}

登录认证直接调用该方法进行认证。